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YontooIEClient.dll

Yontoo Runtime

Yontoo LLC

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module YontooIEClient.dll by Yontoo has been detected as adware by 28 anti-malware scanners. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘Yontoo Layers’. By plugging into the web browser, this extension will inject advertisements both banner and context hyperlinks based on the web sites being visited. It can be installed from the program's website or it may be bundled by third-party software installation programs.
Publisher:
Yontoo LLC  (signed and verified)

Product:
Yontoo Runtime

Version:
1.10.01

MD5:
bdb37117b2ac1ff1040fe1029c4ae186

SHA-1:
679ae5ed881b3bae80887e733bd1396bd076f1d7

SHA-256:
b1530a4d436a8f4f32eff1b0aa8ebcfc6dd57fca2bb6383c66068bf2f19955d6

Scanner detections:
28 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/19/2024 7:55:03 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Generic.508331
423

Agnitum Outpost
Adware.WebCake
7.1.1

AVG
Yontoo
2016.0.2901

Baidu Antivirus
Adware.Win32.Yontoo
4.0.3.15129

Bitdefender
Application.Generic.508331
1.0.20.1715

Bkav FE
W32.Clod973.Trojan
1.3.0.4613

Clam AntiVirus
Win.Adware.Yontoo-4
0.98/18355

Comodo Security
Application.Win32.Yontoo.a
16955

Dr.Web
Adware.Plugin.11
9.0.1.0343

ESET NOD32
Win32/Adware.Yontoo (variant)
9.8812

Fortinet FortiGate
Adware/Yontoo
12/9/2015

F-Prot
W32/Adware.AKRZ
v6.4.7.1.166

G Data
Application.Generic.508331
15.12.24

IKARUS anti.virus
not-a-virus:AdWare.Win32.WebCake
t3scan.2.0.127

K7 AntiVirus
Adware
13.176.11239

Kaspersky
not-a-virus:AdWare.Win32.WebCake
14.0.0.998

McAfee
Artemis!9A4E4B0CABF9
5600.6557

MicroWorld eScan
Application.Generic.508331
16.0.0.1029

NANO AntiVirus
Trojan.Win32.Siggen.cocwct
0.28.0.57630

Quick Heal
AdWare.WebCake.r6 (Not a Virus)
12.15.14.00

Reason Heuristics
PUP.Yontoo (M)
15.12.9.9

Rising Antivirus
Trojan.Win32.Generic.137177DE
23.00.65.151207

SUPERAntiSpyware
Adware.Yontoo
9458

Trend Micro House Call
TROJ_GEN.RC1H1DM
7.2.343

Trend Micro
TROJ_GEN.R0CBC0OAK14
10.465.09

Vba32 AntiVirus
AdWare.WebCake
3.12.24.3

VIPRE Antivirus
Yontoo
21566

Zillya! Antivirus
Adware.WebCake.Win32.4
2.0.0.2004

File size:
190.4 KB (194,928 bytes)

Product version:
1.10.01

Copyright:
Copyright (c) 2011 Yontoo LLC. All rights reserved.

Original file name:
YontooIEClient.dll

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\yontoo\yontooieclient.dll

Digital Signature
Signed by:
Yontoo LLC

Authority:
VeriSign, Inc.

Valid from:
12/6/2011 6:00:00 PM

Valid to:
12/6/2012 5:59:59 PM

Subject:
CN=Yontoo LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Yontoo LLC, L=Carlsbad, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
4F8617352536F013088C9B5533AA4440

Registration
CLSIDs:
{10DE7085-6A1E-4D41-A7BF-9AF93E351401}, {DF7770F7-832F-4BDF-B144-100EDDD0C3AE}, {FD72061E-9FDE-484D-A58A-0BAB4151CAD8}

ProgIDs:
YontooIEClient.Api.1, YontooIEClient.Layers.1

COM registered:
Yes

File PE Metadata
Compilation timestamp:
10/3/2012 7:29:37 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:0vWMjk7cpgC5sMGweABHpBWeJn+oST8z3fKU7bVLQFfmufJ4:0TS2/5r7BdJn+fAfKQL

Entry address:
0x12587

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, B5, 65, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, A3, D0, 8D, 02, 10, 5D, C3, 8B, FF, 55, 8B, EC, FF, 35, D0, 8D, 02, 10, FF, 15, 58, 01, 02, 10, 85, C0, 74, 0F, FF, 75, 08, FF, D0, 59, 85, C0, 74, 05, 33, C0, 40, 5D, C3, 33, C0, 5D, C3, 6A, 00, 68, 00, 10, 00, 00, 6A, 00, FF, 15, 50, 01, 02, 10, 33, C9, 85, C0, 0F, 95, C1, A3, D8, 8D, 02, 10, 8B, C1, C3, FF, 35, D8, 8D, 02, 10, FF, 15...
 
[+]

Entropy:
6.3440

Code size:
119.5 KB (122,368 bytes)

Internet Explorer BHO
Display name:
Yontoo Layers

CLSID:
{FD72061E-9FDE-484D-A58A-0BAB4151CAD8}

CLSID name:
Yontoo


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